Disabled Klayout XOR step

openlane/user_project_wrapper/config.tcl

diff --git a/openlane/user_project_wrapper/config.tcl b/openlane/user_project_wrapper/config.tcl
index 19a5b37..94a9f97 100755
--- a/openlane/user_project_wrapper/config.tcl
+++ b/openlane/user_project_wrapper/config.tcl
@@ -81,4 +81,4 @@
 #set ::env(MAGIC_DRC_USE_GDS) 0
 
 set ::env(RUN_KLAYOUT_DRC) 0
-
+set ::env(RUN_KLAYOUT_XOR) 0